4 results about "Blue phase liquid crystal" patented technology

In some embodiments, wavefront engineered contact / scleral / intraocular lenses correct presbyopia and / or astigmatism. Some aspects relate to apparatuses including structures doped with certain nanoparticles to enhance alignment of liquid crystal materials. Some embodiments relate to tunable optical lenses for vision correction that have a structure with doped nanoparticles in the liquid crystal layer and alignment layer or only with blue phase liquid crystal layer without any alignment layer.

The present application relates to the technical field of liquid crystal display, and particularly relates to a reflective blue phase liquid crystal display panel and a preparation method thereof. The reflective blue phase liquid crystal display panel comprises a glass packaging layer, an orientation layer, a blue phase liquid crystal layer, an electrode layer, a substrate layer, an optical absorption layer, and spacers uniformly distributed between the glass packaging layer and the substrate layer, and the orientation layer is provided with a step structure layer; the blue phase liquid crystal layer is filled with a single blue phase liquid crystal material to form, and the crystal face orientation of the blue phase liquid crystal layer is jointly determined by the surface anchoring free energy of the orientation layer and the thickness difference of the step structure layer. The present application is based on the growth of the blue phase liquid crystal induced by the patterned orientation surface, can effectively reduce the surface free energy and reduce the lattice structure defects, and improve the optical properties of the blue phase liquid crystal; meanwhile, by utilizing the difference of the Bragg reflection of different lattices of the same blue phase liquid crystal material, red, green and blue three primary colors can be obtained, and the process steps of preparing three primary colors by using three materials in general blue phase liquid crystal display devices can be simplified.

This invention relates to the field of lenses, specifically to a position-modulable liquid crystal lens based on the principle of electric field superposition. The structure of this invention, from top to bottom, consists of an upper substrate, a liquid crystal layer, a dielectric layer, an electrode layer, and a lower substrate. The liquid crystal layer uses polymer-stabilized blue phase liquid crystal, and the electric field within it is a transverse electric field. According to the Kerr effect and related principles, it can achieve a larger refractive index difference. This invention achieves a transverse electric field in the liquid crystal layer through the principle of electric field superposition; that is, the transverse electric fields between pairs of electrodes are superimposed and enhanced, while the longitudinal electric fields are superimposed and canceled out. This allows for the realization of a transverse electric field in a liquid crystal lens with a single-layer planar electrode architecture, reducing the etching depth of the electrode structure. Furthermore, this invention modulates the sinusoidal driving voltage applied to the electrodes, achieving a transverse shift in the lens's refractive index distribution. The minimum precision of this transverse shift is the distance between two adjacent electrodes, thus enabling precise adjustment of the liquid crystal lens's position.

The invention discloses double-chiral blue-phase liquid crystal photon paper as well as a preparation method and application thereof. The photon paper structurally comprises a first substrate, a first blue phase liquid crystal polymer template and a second blue phase liquid crystal polymer template, wherein the first blue phase liquid crystal polymer template and the second blue phase liquid crystal polymer template are sequentially arranged on the first substrate from bottom to top; wherein the first blue-phase liquid crystal polymer template and the second blue-phase liquid crystal polymer template have opposite chirality. Patterns written or printed on the photon paper can reflect left-handed light and right-handed light at the same time, the light in different rotation directions contains different color information and color change rates, and the polarization anti-counterfeiting and information encryption effects are achieved.